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To most of us sharks are the most dangerous fish in the sea and they attack humans. However, according to Dr. Clark, who has studied the behavior of sharks for 12 years, humans are not normally on the shark' s menu. What do sharks feed on? Mainly fish and other small sea animals. Dr. Clark also found that sharks don' t eat as much food as people think. For instance, a ninefoot shark only needs two pounds of food a day to keep healthy. But she says, sometimes sharks starve and at other times they fill themselves with what they have killed. |
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duì wǒ men dà duō shù rén lái shuō, shā yú shì hǎi lǐ zuì wēi xiǎn de yú lèi, ér qiě tā men gōng jī rén lèi. dàn shì, yán jiū le 12 nián shā yú xíng wéi de kè lā kè bó shì shuō, shā yú yì bān shì bù chī rén de. nà me shā yú chī shén me ne? zhǔ yào shì yú hé qí tā xiǎo xíng hǎi yáng dòng wù. kè lā kè bó shì hái fā xiàn, shā yú qí shí bìng méi yǒu rén lèi xiǎng xiàng zhōng chī de nà me duō. bǐ rú, yī tiáo jiǔ yīng chǐ de shā yú yì tiān zhǐ xū yào liǎng bàng shí wù jiǔ kě yǐ bǎo chí jiàn kāng. bù guò tā hái shuō, shā yú yǒu shí hou huì è dǔ zi, hái yǒu shí hou huì shā diào shén me jiù chī shén me. |